123 lines
4.6 KiB
C
123 lines
4.6 KiB
C
/* zmalloc - total amount of allocated memory aware version of malloc()
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*
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* Copyright (c) 2009-2010, Salvatore Sanfilippo <antirez at gmail dot com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Redis nor the names of its contributors may be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __ZMALLOC_H
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#define __ZMALLOC_H
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#include <stdint.h>
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/* Double expansion needed for stringification of macro values. */
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#define __xstr(s) __zm_str(s)
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#define __zm_str(s) #s
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#if defined(USE_JEMALLOC)
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#define ZMALLOC_LIB ("jemalloc-" __xstr(JEMALLOC_VERSION_MAJOR) "." __xstr(JEMALLOC_VERSION_MINOR) "." __xstr(JEMALLOC_VERSION_BUGFIX))
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#include <jemalloc/jemalloc.h>
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#if (JEMALLOC_VERSION_MAJOR == 2 && JEMALLOC_VERSION_MINOR >= 1) || (JEMALLOC_VERSION_MAJOR > 2)
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#define HAVE_MALLOC_SIZE 1
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#define zmalloc_size(p) je_malloc_usable_size(p)
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#else
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#error "Newer version of jemalloc required"
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#endif
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#elif defined(__APPLE__)
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#include <malloc/malloc.h>
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#define HAVE_MALLOC_SIZE 1
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#define zmalloc_size(p) malloc_size(p)
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#endif
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/* On native libc implementations, we should still do our best to provide a
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* HAVE_MALLOC_SIZE capability. This can be set explicitly as well:
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*
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* NO_MALLOC_USABLE_SIZE disables it on all platforms, even if they are
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* known to support it.
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* USE_MALLOC_USABLE_SIZE forces use of malloc_usable_size() regardless
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* of platform.
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*/
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#ifndef ZMALLOC_LIB
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#define ZMALLOC_LIB "libc"
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#include <malloc.h>
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#define HAVE_MALLOC_SIZE 1
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#ifdef USE_ZMALLOC_MI
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#define zmalloc_size(p) zmalloc_usable_size(p)
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#else
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#define zmalloc_size(p) malloc_usable_size(p)
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#endif
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#endif // ZMALLOC_LIB
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/* We can enable the Redis defrag capabilities only if we are using Jemalloc
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* and the version used is our special version modified for Redis having
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* the ability to return per-allocation fragmentation hints. */
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#if defined(USE_JEMALLOC) && defined(JEMALLOC_FRAG_HINT)
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#define HAVE_DEFRAG
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#endif
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void *zmalloc(size_t size);
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void *zcalloc(size_t size);
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void *zrealloc(void *ptr, size_t size);
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void *ztrymalloc(size_t size);
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void *ztrycalloc(size_t size);
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void *ztryrealloc(void *ptr, size_t size);
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void zfree(void *ptr);
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size_t znallocx(size_t size); // Equivalent to nallocx for jemalloc or mi_good_size for mimalloc.
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void zfree_size(void* ptr, size_t size); // equivalent to sdallocx or mi_free_size
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void *zmalloc_usable(size_t size, size_t *usable);
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void *zcalloc_usable(size_t size, size_t *usable);
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void *zrealloc_usable(void *ptr, size_t size, size_t *usable);
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void *ztrymalloc_usable(size_t size, size_t *usable);
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void *ztrycalloc_usable(size_t size, size_t *usable);
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void *ztryrealloc_usable(void *ptr, size_t size, size_t *usable);
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// size_t zmalloc_used_memory(void);
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void zmalloc_set_oom_handler(void (*oom_handler)(size_t));
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size_t zmalloc_get_rss(void);
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int zmalloc_get_allocator_info(size_t *allocated, size_t *active, size_t *resident);
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void set_jemalloc_bg_thread(int enable);
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int jemalloc_purge();
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size_t zmalloc_get_private_dirty(long pid);
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size_t zmalloc_get_smap_bytes_by_field(char *field, long pid);
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size_t zmalloc_get_memory_size(void);
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size_t zmalloc_usable_size(const void* p);
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// roman: void zlibc_free(void *ptr);
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extern __thread ssize_t used_memory_tl;
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void init_zmalloc_threadlocal();
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#undef __zm_str
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#undef __xstr
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#endif /* __ZMALLOC_H */
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